# NTSB LAX77DUJ97: Boeing E75, N55439, Marana, AZ, July 20, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 20, 1977
- Place: Marana, AZ · MARANA, AZ
- Location: 32.4367° N, 111.2254° W: Placed by OpenAirDocs: center of Marana, AZ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.4367&lon=-111.2254&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 23, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 146132
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX77DUJ97
- Page: https://openairdocs.org/ntsb/LAX77DUJ97

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1950  77/7/20    MARANA,AZ           BOEING E75          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 34, 4000
        TIME - 0800                    N55439              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 460 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - TAYLORS STRIP
        DEPARTURE POINT             INTENDED DESTINATION
          MARANA,AZ                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: BRAKING SYSTEM (NORMAL SYSTEM)
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - COTTON                                    TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  2300
        REMARKS- LEFT BRAKE SHOE, HAYES MODEL 2750A, BROKE. BRAKE LOCKED.
```

## Aircraft

- Registration: [N55439](https://openairdocs.org/deregistered/N55439-2002-03-15), registration cancelled 2002-03-15, S/N 75-874, built 1941 (OpenAirDocs)
- Reported make and model: BOEING E75
- Registry model: [Boeing A75](https://openairdocs.org/model/boeing-a75) (registry code 1380108) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Taylors Strip

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19770720024359A](https://openairdocs.org/incident/19770720024359A), Jul 20, 1977: Boeing E75, Marana, AZ, Substantial damage. Left brake shoe, hayes model 2750A, broke. Brake locked.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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